General Lee: Conversion, Transmitter, Review
The conversion of this radio is simple. Remove the four 100 Ohm resistors from the solder side of the main circuit board. Be careful where the four resistors are soldered together.
Use a minimum amount of heat and remove the resistors straight up. Otherwise, you may damage the trace that they are connected to. In addition, the traces in this area are very close and could be bridged very easily.
Check your work before testing it out, then test it and compare it to the road map.
General Lee Transmitter Tune-up
With the RF power switch in the high position, key the mic and adjust VR13 until 10 Watts is indicated on the external power meter. Switch the RF power switch to low, key the mic and adjust VR16 to 2 Watts on the external power meter.
To set the modulation, inject a 30 mv 1 KHz signal into the mic jack with an audio signal generator with the mic gain control fully clockwise. In the AM mode and the RF power switch on high, adjust VR14 for the desired modulation reading on an external modulation meter. Then switch to low power and adjust VR12 for the desired modulation reading on an external modulation meter.
Clean loud modulation can be achieved by setting the modulation at 90% on both adjustments. VR14 can be set to maximum and there will still be some slight limiting. If all out maximum modulation is desired, TR37 can be removed. Both high and low power setting won’t have any limiting.
Over modulation will have to be controlled with the mic gain control.With the mode switch in the FM position and the mic gain fully clockwise, adjust VR5 for no more than 4 KHz deviation.
Now with the radio in the AM mode on high power and fully modulated, adjust VR8 until the internal RF meter reads just over full scale. This will keep the needle from slapping of the end of the scale, shortening its life.
|VR5||FM Deviation Adjustment|
|VR8||RF Meter Adjustment|
|VR12||AM Low Power Modulation Limiter|
|VR13||High Power Adjustment|
|VR14||AM High Power Modulation Limiter|
|VR16||Low Power Adjustment|
Review Of The General Lee 10 Meter Transceiver
The General Lee is an AM/FM 6-band 10 Meter radio. It is very similar to the Connex 3300HP, which has been around for many years. Both of these radios are made by one of the RCI factories. A great deal of thought went into making this an operator friendly radio. Some things have been added that radio operators had their technicians install in the past on other similar rigs.
From first look, the radio looks like a Connex 3300 with its brushed aluminum front panel and chrome-plated bezel. The Confederate flag type symbol does point out the difference though. Although it’s not a politically correct radio, it is one of the hottest selling 10-meter radios today.
Could it be it’s political incorrectness or is it truly better than the competition? This is the object of the review.A feature many truck drivers’ have considered in the last few years is the front mounted microphone connector. With the size of the cubbyholes in the newer trucks getting smaller, it’s more difficult to mount a radio with a side mounted microphone jack.
The newer cars have become a greater challenge with their less roomy interiors. With the mic connector coming out of the front, this means less width required for the radio. In addition, the microphone cord won’t be bent at a right angle stressing the connections.
1. 1.S/RF Meter2.
2. NB/ANL Switch3.
3. HI/LO RF Output Power4.
4. ON/OFF Talkback Switch5.
5. +10 KHz Switch6.
6. TX/RX LED7.
7. LED Channel Readout
8. Front Mounted 4-Pin Mic Wiring
9. Volume/Squelch Control
10. Mic Gain/RF Gain Control
11. PA/AM/FM Mode Switch
12. Band Selection Switch
13. Echo ON/OFF/Delay/Volume Control
14. Channel Selector Switch
There is the addition of a talkback switch allowing the talkback to be turned on or off independent of the echo. In many radios of this design, the talkback automatically turns on with the echo.
If a noise-canceling mic wasn’t used or if a speech processor is used, the mic gain may have to be lowered to keep the talkback from going into feedback. Lowering the mic gain to satisfy the needs of the talkback circuit usually creates an under modulated signal.
With the talkback switch, the echo can be set at a lower modulation level and once the talkback is turned off, the modulation can be set to a proper level and all is well. Of course, if you want talkback all the time, a RK-56 mic will do the trick or a UTB-1 adjustable talkback kit could be installed.
The other notable change is in the band selection. The Connex has a 3-position switch in conjunction with a high low switch. If that isn’t complicated enough, the switch is marked A/D for position 1, B/E for position 2, and C/F for position 3. This system took two control positions on the radio face as well as making the radio more difficult to use.
The General Lee has a 6-position switch marked A-F for its band selection.The remaining features are the same as the Connex 3300. The automatic noise limiter (ANL) works very well on all types of noise in the audio detection, and the noise blanker (NB) does its job removing additional interference at the RF level. If all is electrically quiet, the ANL & NB can be turned off for increased audio quality.
The RF output power is switchable from high to low. Both the high and low settings have adjustment potentiometers to preset to your desired carrier settings. This is convenient if an external amplifier is used. Different amps require various drive levels to perform properly.
The low power can be set for the optimum AM carrier level and the high setting can be set for the optimum FM setting. Or if you don’t intend on using FM as do most operators, the high setting can be set to optimum high power carrier to modulation swing.Next is the +10 KHz switch.
Many radio operators don’t understand the purpose of the +10 KHz switch. This switch increases the frequency by 10 KHz or 1 channel. If the radio was on channel one and the +10 KHz switch was turned on, the radio would then be on channel 2. You might ask what useful purpose does that serve.
Well, these chassis are nothing more than converted CB chassis using the same switches used in CB radios. The switches have channel skips built in for the radio control (RC) channels used for remote control devices. These RC channels are also referred to as “A” channels.
There are RC channels between channels 3 & 4, 7 & 8, 11 & 12, 15 & 16, and 19 & 20. Some radios designate them as 3A, 7A, 11A, 15A, and 19A. Being a function of the channel selector switch, this means these skips occur on all six bands making a grand total of 30 skipped channels or frequencies.
To pick up one of these skips, go to 3, 7, 11, 15, or 19 and turn on the +10 KHz switch and you’re there.Receiver audio volume is very good. The volume can be turned up quite a bit before the distortion level is noticeable.
With a good quality external speaker such as the PDC-101 or the Texas Ranger SRA-168 series speakers, the audio is much louder and cleaner. This isn’t surprising, most CB and 10-meter radios don’t have very high quality sounding internal speakers.
The exceptions to this rule are the Ranger AR-3300 & 3500, Magnum Alpha & Delta Force radios. The squelch range is very good and has an internal coarse adjustment. Adjusting the internal coarse control will increase or decrease the maximum signal level needed to break through the squelch at its maximum setting.
Increasing it requires a stronger signal to override the squelch, but this makes the front panel adjustment more critical to adjust. Decreasing the coarse adjustment allows weaker signals to break through the squelch on the maximum front panel control setting and makes the squelch control finer or less critical to adjust.
The RF gain control is typical of radios in this league; most of the adjustment is in a small area of rotation in this control. This is also true in Connex, Galaxy, Super Star, Magnum and many other radios.
The front-end of these radio designs use a similar scheme in reducing the receiver sensitivity. The mic gain has a complete control from no audio to full audio output.
The gain of this radio is sufficient to use a RK-56B with it, but the Astatic 636L sounds a little low without making modifications to the microphone preamp stage in the radio or adding a speech processor.
Some operators don’t like the new type echo board in this and the Connex 3300 radios. This new design incorporates a digital echo chip that produces very clean reverb and repeat echo.
Opponents to this new design can’t describe what they don’t like about it, but in my opinion, it’s ten times better than the earlier version of echo board. It’s quite easy to adjust to the desired effect.
General Lee Rear Panel
The output power is very good. Some dealer set the AM carrier to 15 watts, but I prefer to set it to 10 and have the modulation swing to 38 to 40 watts.
The modulation can be adjusted to swing above 30 watts by adjusting the AMC control, removing the limiter completely will give a higher swing, of course the modulation will be clipping considerable. Even with this clipping, the audio will sound much better than adding one of those super mod kits.
The receiver sensitivity is very good and can be increased by tuning it to 11-meters. The selectivity is excellent even after tuning for increased sensitivity. I’ve found some radios detuned to mask selectivity problems in the past, but the selectivity stayed the same form before and after.
I highly recommend this radio if you like the band selection method of uppers and lowers as well as only needing AM/FM. It’s a good looking radio with better functionality than other radios in its price range. With the additional features and lower price than the Connex 3300HP the choice is easy.